Alaska earthquakes

M2.5 earthquake 191 km SSE of Adak, Alaska

A magnitude 2.5 earthquake struck 191 km SSE of Adak, Alaska on Sat, Jan 11, 2020, 4:50 PM HAST (02:50 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.2 123 km SSW of Atka, Alaska. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.5 (ml), micro
Local time
UTC
2020-01-12 02:50:43 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
50.355° N, 175.352° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 4.0 km horizontally, 2.0 km in depth
Depth from
Operator assigned
Station coverage gap
290°, poorly surrounded by stations
Stations used
20

Nearby

Within 100 km, magnitude 1.5 and up: 36 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 2.6164 km SSE of Adak, Alaska · 2426 days ago · 24 km deep · 28 km away
  2. 2.9125 km SSW of Atka, Alaska · 2424 days ago · 30 km deep · 96 km away
  3. 2.6131 km SSW of Atka, Alaska · 2424 days ago · 14 km deep · 89 km away
  4. 2.8123 km SSW of Atka, Alaska · 2422 days ago · 17 km deep · 98 km away
  5. 3.0133 km SSW of Atka, Alaska · 2422 days ago · 14 km deep · 87 km away
  6. 2.5128 km SSW of Atka, Alaska · 2422 days ago · 26 km deep · 92 km away
  7. 2.7133 km SSW of Atka, Alaska · 2422 days ago · 35 km deep · 86 km away
  8. 3.1Andreanof Islands, Aleutian Islands, Alaska · 2422 days ago · 14 km deep · 95 km away
  9. 3.7130 km SSW of Atka, Alaska · 2422 days ago · 23 km deep · 91 km away
  10. 2.2123 km SSW of Atka, Alaska · 2422 days ago · 26 km deep · 97 km away
  11. 4.1129 km SSW of Atka, Alaska · 2421 days ago · 10 km deep · 90 km away
  12. 4.1129 km SSW of Atka, Alaska · 2421 days ago · 21 km deep · 91 km away
  13. 4.2123 km SSW of Atka, Alaska · 2421 days ago · 10 km deep · 96 km away
  14. 3.6135 km SSW of Atka, Alaska · 2421 days ago · 10 km deep · 85 km away
  15. 3.3122 km SSW of Atka, Alaska · 2421 days ago · 15 km deep · 99 km away
  16. 3.4125 km SSW of Atka, Alaska · 2421 days ago · 10 km deep · 95 km away
  17. 3.1133 km SSW of Atka, Alaska · 2421 days ago · 10 km deep · 86 km away
  18. 2.7131 km SSW of Atka, Alaska · 2421 days ago · 11 km deep · 89 km away
  19. 2.6128 km SSW of Atka, Alaska · 2421 days ago · 10 km deep · 92 km away
  20. 3.1132 km SSW of Atka, Alaska · 2421 days ago · 10 km deep · 88 km away
  21. 3.1130 km SSW of Atka, Alaska · 2421 days ago · 10 km deep · 90 km away
  22. 2.8129 km SSW of Atka, Alaska · 2421 days ago · 10 km deep · 90 km away
  23. 2.7126 km SSW of Atka, Alaska · 2421 days ago · 15 km deep · 95 km away
  24. 2.8Andreanof Islands, Aleutian Islands, Alaska · 2421 days ago · 25 km deep · 88 km away
  25. 2.8125 km SSW of Atka, Alaska · 2421 days ago · 15 km deep · 97 km away
  26. 3.8127 km SSW of Atka, Alaska · 2421 days ago · 10 km deep · 94 km away
  27. 2.5125 km SSW of Atka, Alaska · 2420 days ago · 10 km deep · 95 km away
  28. 1.8123 km SSW of Atka, Alaska · 2419 days ago · 26 km deep · 97 km away
  29. 2.5131 km SSW of Atka, Alaska · 2418 days ago · 10 km deep · 88 km away
  30. 3.2173 km SSW of Atka, Alaska · 2410 days ago · 31 km deep · 57 km away
  31. 1.7125 km SSW of Atka, Alaska · 2407 days ago · 26 km deep · 98 km away
  32. 2.0127 km SSW of Atka, Alaska · 2407 days ago · 21 km deep · 96 km away
  33. 2.8139 km SSW of Atka, Alaska · 2407 days ago · 10 km deep · 82 km away
  34. 1.8125 km SSW of Atka, Alaska · 2407 days ago · 15 km deep · 98 km away
  35. 1.9167 km SE of Adak, Alaska · 2401 days ago · 25 km deep · 44 km away
  36. 1.9126 km SSW of Atka, Alaska · 2398 days ago · 25 km deep · 95 km away

Before

  1. 2.5184 km S of Atka, Alaska · 2462 days ago · 10 km deep · 77 km away
  2. 2.3123 km SSW of Atka, Alaska · 2481 days ago · 13 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us700071gk (also filed as ak020jvxuf4). Read Thu, Oct 1, 2026, 12:03 AM UTC.